31 results about "1-Butyl-3-methylimidazolium hexafluorophosphate" patented technology

An improved electrolyte for a cell having an anode comprising magnesium or magnesium alloy. The cell's cathode may desirably include iron disulfide (FeS₂) as cathode active material. The improved electrolyte comprises a magnesium salt, preferably magnesium perchlorate dissolved in an organic solvent which preferably includes acetonitrile or mixture of tetrahydrofuran and propylene carbonate. The electrolyte includes an additive to retard the buildup of deleterious passivation coating on the magnesium anode surface, thereby enhancing cell performance. Such additive may preferably include 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF₄), 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF₆), lithium hexafluorophosphate (LiPF₆), or aluminum chloride (AlCl₃)

The invention discloses a preparation method for preparing titanium dioxide photochemical catalyst by ionic liquid, which comprises the following steps: solution A is obtained by adding absolute ethyl alcohol, tetrabutyl orthotita and methyl ethyl diketone to an agitated reactor with mechanical stirring in sequence and then stirring; solution B is obtained by adding absolute ethyl alcohol, 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid, distilled water and concentrated hydrochloric acid to an agitated reactor with mechanical stirring in sequence and then stirring; transparent light yellow collosol is obtained by mixing the solution A with the solution B and then stirring; the light yellow collosol is stoved at 100 DEG C in a vacuum drying oven with heat in a muffle furnace being preserved for 1 hour, the muffle furnace is heated and then heat is preserved for 2 hours, finally the light yellow collosol taken out from the muffle furnace to reach indoor temperature by natural cooling to obtain the titanium dioxide photochemical catalyst. The invention takes 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid as organic solution medium so as to obtain a high efficient titanium dioxide photochemical catalyst which has uniform granularity, good crystallization, increscent exciting light wavelength coverage and ampliative light absorption coverage.

The invention discloses a polyvinylidene fluoride composite oriented dielectric film with high beta-crystal content and a preparation method of the dielectric film. The polyvinylidene fluoride composite oriented dielectric film is a blend, and the blend contains polyvinylidene fluoride (PVDF) and 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF6). The preparation method comprises the following steps: mixing PVDF and BMIMPF6 according to a mass ratio of 100:(0.5-30), and adding N, N-dimethyl formamide to cause the concentration of the PVDF solution to be 1-20wt%; magnetically stirring at the temperature of 40-60 DEG C for 5-24 hours to prepare a PVDF/BMIMPF6 solution with a certain mass ratio; performing film forming on a casting solution on a constant temperature heating stage by adopting a spin-coating method, thereby preparing the highly oriented PVDF film by using a uniaxial stretching device after the solvent is completely volatilized. The oriented PVDF film has anisotropism and high beta-crystal content, and the dielectric constant is improved. Meanwhile, the contact angle is reduced along with the increase of the content of ionic liquid, and the hydrophilcity is improved. The prepared film has excellent piezoelectric and dielectric properties, is simple in preparation method and process flow and favorable for industrial production and has wide market application prospects.

The invention provides a preparation method of furfural, and belongs to the technical field of chemical synthesis. According to the method, furfural is obtained in 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM]PF6) ionic liquid through a one-pot method by taking pentose and biomass as raw materials, taking a polymer-supported sulfonic acid (PEG (polyethylene glycol)-OSO3H, PS (polystyrene)-PEG-OSO3H) as a catalyst and taking manganese chloride as an additive. Therefore, the reaction process is greatly simplified, the production rate is improved, and the production cost is reduced; the catalyst is easy to recover and recycle, and the separation and post-treatment processes are simple; and adopted raw materials and various reagents are non-toxic, the production process is pollution-free, equipment is not corroded, and the method is environment-friendly.

A gel polymer electrolyte comprises polyacrylonitrile, an ionic liquid, a lithium salt and mesoporous molecular sieve SBA-15; the ionic liquid is at least one selected from 1-butyl-3-methylimidazolium tetrafluoroborate, 1-butyl-3-methylimidazolium hexafluorophosphate, 1-butyl-3-methylimidazolium trifluoromethanesulfonate and 1-butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide; the lithium slat is at least one selected from lithium tetrafluoroborate, lithium hexafluorophosphate, lithium trifluoromethanesulfonate and lithium bis(trifluoromethanesulfonyl)imide; polyacrylonitrile is the base material, the lithium salt, the ionic liquid and mesoporous molecular sieve SBA-15 are dissolved in polyacrylonitrile; and the mass ratio of polyacrylonitrile, the ionic liquid, the lithium salt and mesoporous molecular sieve SBA-15 is 1:(0.8-1.5):(0.1-0.3):(0.04-0.08). The gel polymer electrolyte is relatively high in electrical conductivity. The invention also provides a preparation method of the gel polymer electrolyte.

The invention discloses a method for preparing interconnected and folded graphene materials for a super-capacitor and belongs to the technical field of carbon material preparation. According to the method, anthracene oil dissolved by N,N-dimethylfomamide is used as a carbon source, nano magnesium oxide is used as a template and potassium hydroxide is used as an activating agent; and the obtained raw materials are ground and mixed together to obtain a mixture, the mixture is transferred into a corundum porcelain boat, and a target product is directly prepared by heating the mixture under a flowing argon atmosphere. The method takes the low-price anthracene oil as a raw material, and has the advantages of being simple in process, low in cost and suitable for industrial production. The interconnected and folded graphene materials prepared by the method and serving as an electrode material for the super-capacitor show very high capacity and energy density; and in a 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF6) ionic liquid electrolyte and under the condition that the current density is 50mA/g and the electrode specific capacitance reaches 271F/g, the available energy density of the super-capacitor reaches 150Wh/kg and can be comparable with the energy density of a lithium ion battery.

The invention discloses a preparation method and application of magnetically loaded ionic liquid microsphere immobilized cells. The preparation method comprises the following steps of: mixing sodium alginate, a Fe3O4/CS magnetic material and 1-butyl-3-methylimidazolium hexafluorophosphate to obtain a mixed solution; mixing the mixed solution with cell suspension to obtain injectable suspension; and immobilizing the injectable suspension by using CaCl2 as a crosslinking agent to obtain the magnetically loaded ionic liquid microsphere immobilized cells. As the immobilized cells prepared by the method have the magnetism, the separation and continuous fermentation of immobilized cells are facilitated, and ionic liquid loaded on a magnetic material greatly improves the catalytic activity of theimmobilized cells.

A PE corrugated pipe modified with phyllosilicate is characterized by being prepared by weight part from high-density polyethylene, low-density polyethylene, inorganic montmorillonoid, 1-butyl-3-methylimidazolium hexafluorophosphate, an ethanol aqueous solution with the concentration of 40-60%, butanediamine, vinyl cyanide, raney nickel, alpha-(diphenylphosphino) acetic acid, borax, vinyltrimethoxyacyloxygroupsilanes, gamma-glycidyl trimethoxy silane, N,N-diphenyl p-aniline, tert-butyl peroxypivalate, cobalt stearate, polyvinyl chloride, glass fibers, decabromodiphenyl ether, antimonous oxide and dibasic lead phthalate. The PE corrugated pipe has the advantages of being high in crushing resistance, good in corrosion resistance, antistatic, flame-retardant and long in service life.

The invention relates to the technical field of waste gas treatment, in particular to a novel VOCs absorbent and a preparation method thereof. The novel VOCs absorbent is prepared from, by weight, 50-80 parts of biodiesel, 8-30 parts of a non-ionic surfactant, 4-15 parts of a cosurfactant, 0.5-5 parts of camphene, 4-12 parts of 1-butyl-3-methylimidazolium hexafluorophosphate, 3-8 parts of 1-butyl-3-methylimidazolium tetrafluoroborate and an appropriate amount of water. The prepared novel absorbent has high absorption efficiency for low-concentration organic waste gas, and the absorbent after waste gas treatment can be directly used as fuel for combustion, and the environmental and economic benefits are good.

The invention discloses a carbon fiber-graphene filled flexible high thermal conductive insulating flame retardant plastic for an LED and a preparation method of the plastic. The plastic is characterized by taking magnesium oxide, boron nitride, PBT, EVA, glass fiber, 107 glue, dibutyltin dilaurate, tetraethyl orthosilicate, melamine cyanurate, zinc borate, aluminum hypophosphite, bamboo charcoal, nano SiO2, butyltin chloride dihydroxide, graphene oxide, carbon fiber, aluminum oxide, 1-butyl-3-methylimidazolium hexafluorophosphate and the like as raw material. According to the plastic, H550 surface treated silicone rubber is prepared, butyltin chloride dihydroxide serves as a catalyst, and reinforcing and toughening treatment is conducted on polybutylene terephthalate (PBT) with nano SiO2; a composite flame retardant is prepared from aluminum hypophosphite and melamine cyanurate; the carbon fiber-graphene filled flexible high thermal conductive insulating flame retardant plastic for the LED is obtained.

The invention discloses a PE corrugated pipe with strong pressure resistance. The PE corrugated pipe is prepared from high density polyethylene, inorganic montmorillonite, 1-butyl-3-methylimidazolium hexafluorophosphate, an ethanol aqueous solution with a concentration of 40-60%, butanediamine, acrylonitrile, Raney nickel, alpha-(diphenylphosphino)acetic acid, borax, a dimethyl siloxane mixed ring, isoprene rubber, p-hydroxyanisole, tetramethyl ammonium hydroxide, otcamethylcyclotetrasiloxane, polyvinyl chloride, graphene and diisooctyl phenyl phosphite. The PE corrugated pipe has the characteristics of strong pressure resistance, good corrosivity, static resistance, flame retardation and long service life.

A dielectric polymer, methods of making the dielectric polymer, and uses thereof (e.g. piezoelectric sensors and/or actuators) are described. The dielectric polymer includes a polymeric matrix (e.g. a copolymers of styrene and acrylonitrile SAN, or a terpolymer of the former with methyl methacrylate MMA-SAN) derived from at least one polymerizable vinyl monomer and an ionic liquid that includes an organic cation and a balancing anion (e.g. 1-butyl-3-methylimidazolium hexafluorophosphate BMMMPF6). The ionic liquid is compatible with the at least one polymerizable vinyl monomer and the concentration of the ionic liquid in the dielectric polymeric composition ranges from 0.5 wt. % to less than 30 wt. %.

The invention provides a method for preparing a Dy-Ni alloy film through low temperature electrodeposition. 1-butyl-3-methylimidazolium tetrafluoroborate and 1-butyl-3-methylimidazolium hexafluorophosphate are mixed according to a mass percent ratio and used as molten salt. The molten salt is heated to 30 to 60 DEG C. A solute is added to the molten salt under stirring, and then stirred for 6 to 8h to acquire molten salt intermediate liquid. Finally, a Pt piece is used as an inert anode, and a high pure copper piece is used a cathode. The molten salt intermediate liquid is electrified for electrolysis, and the current density is controlled to be 0.01 to 0.1 A/cm<2> during electrolysis. The electrolysis time is 1 to 2 h. The Dy-Ni alloy film is acquired on the surface of the cathode. The method provided by the invention has the advantages of simple equipment, low energy consumption, low cost, simple operation, short preparation time, easy control of the thickness range and the like.

The invention discloses a modified melamine-compounded flame retarding-enhanced foam cement polyurethane composite insulation board. The composite insulation board is prepared from, by weight, 3-4 parts of waste cotton and blast fibers, 1-1.2 parts of chlorinated paraffin, 0.3-0.34 part of fatty alcohol polyoxyethylene ether, 45-50 parts of ultrafine Portland cement, 3.5-4 parts of hydrogen peroxide with the concentration of 30 wt%, 3-3.5 parts of gypsum powder, 2-3 parts of stearic acid, 2.5-3 parts of aluminum sulfate, 1.6-1.8 parts of organosilicon latex, an appropriate amount of deionized water, 75-80 parts of polyoxypropylene polyol, 23-25 parts of isocyanate, 2.2-2.4 parts of N,N,N,N',N'-pentamethyldiethylenetriamine, 10-12 parts of n-pentane, 3-4 parts of silicone oil, 2-3 parts of ammonium polyphosphate, 0.1-0.2 part of dibutyltin dilaurate, 4-5 parts of melamine and 6-7 parts of 1-butyl-3-methylimidazolium hexafluorophosphate. The prepared composite insulation board is good in flame retardance, capable of saving energy and reducing consumption and worthy of popularization.

A silicate-reinforced polyurethane coating is characterized in that the polyurethane coating is prepared from the following ingredients in parts by weight: acetone, sodium hydroxide solution, anhydrous zinc chloride, n-butylaldehyde, cyclohexane, anhydrous magnesium sulfate, benzenetetracarboxylic anhydride, 1,2-propylene glycol, terephthalic acid, montmorillonite, talcum powder, sodium tripolyphosphate, silane coupler KH-560, absolute ethyl alcohol, butanediamine, acrylonitrile, ferric chloride, 1-butyl-3-methylimidazolium hexafluorophosphate, N-phenyl-N'-isopropyl-p-phenylenediamine, propylene glycol butyl ether, N,N'-lutidine, triethylamine, methylene diphenyl diisocyanate, appropriate amount of hydrochloric acid solution and appropriate amount of deionized water. The polyurethane coating hereof has the advantages of firm coating bonding, uniform thickness, strong salt water resistance, good wear resistance, good anti-corrosion performance, non-toxicity and environmental protectionand the like.

The invention discloses an environment-friendly lubricating oil antiwear agent. The environment-friendly lubricating oil antiwear agent is characterized by comprising the following substances in parts by weight: 20-50 parts of sulfurized isobutylene, 1-5 parts of dichloromethane, 2-10 parts of n-pentane, 2-20 parts of octyl phenyl polyoxyethylene ether, 5-25 parts of cetyl trimethyl ammonium bromide, 1-2 parts of 1-butyl-3-methyl imidazolium tetrafluoroborate, 1-2 parts of 1-butyl-3-methylimidazolium hexafluorophosphate, 1-12 parts of trichloromethane, 5-17 parts of normal heptane, 2-7 parts of sulfurized calcium alkyl phenate, 2-4 parts of polyacrylamide and 3-25 parts of corn blend oil. The environment-friendly lubricating oil antiwear agent has the beneficial effects that a plurality of anti-corrosion and anti-oxidation substances are adopted, so that the formed compound has strong anti-corrosion capability and antioxidant ability; edible blend oil is added to the antiwear agent, so that the adsorbability and the film-forming efficiency of the grease are improved, abrasion is reduced, and the environment-friendly lubricating oil antiwear agent adapts to car cold start and is a bran-new antiwear agent.

The invention discloses a preparation method for a compound-type nitrating agent. The preparation method specifically comprises the following steps: firstly using sodium nitrate and bismuth nitrate asactive components, using 1-butyl-3-methylimidazolium hexafluorophosphate as a modifier, and using silica sol as a carrier, preparing a component A; using tetrabutyl titanate as a titanium source, using sodium dodecyl benzene sulfonate as a modifier, and using yttrium chloride as an active component, preparing a component B, enabling the component A and the component B to be mixed, and preparing the compound-type nitrating agent. The nitrating agent prepared by the method is good in stability, excellent in mechanical property, and good in nitration effect while used for nitration of a passivation aromatic ring, and capable of effectively improving a yield of a nitration product.

This invention provides a low cost technique for synthesizing cyclic trithiocarbonates by a simple one step process from epoxides that can be conducted under atmospheric pressure. This synthesis can be depicted as follows:

wherein R represents a moiety selected from the group consisting of alkyl groups and aryl groups, wherein R′ represents a moiety selected from the group consisting of alkyl groups, aryl groups, and hydrogen atoms, and wherein R″ represents a moiety selected from the group consisting of alkyl groups, aryl groups, and hydrogen atoms, wherein the R moiety and the R′ moiety can be bonded together to form a cyclic structure, with the proviso that R″ represents a hydrogen atom if R′ represents an alkyl group or an aryl group. In this process carbon disulfide and a thiocyanate salt, such as potassium thiocyanate, are reacted with the epoxide in an ionic liquid, such as 1-butyl-3-methylimidazolium hexafluorophosphate ([Bmim] PF₆) in the presence of water to produce the cyclic trithiocarbonate.

The invention discloses a synthesis method of a fluorescent probe with high fluorescence intensity and a method for detecting a beta receptor stimulant by using the fluorescent probe and belongs to the field of detection of food safety. The synthesis method of the fluorescent probe with high fluorescence intensity takes 2,3-naphthylenediamine and benzoyl chloride as reactants and takes 1-butyl-3-methylimidazolium hexafluorophosphate as a catalyst to prepare the fluorescent probe. The fluorescent probe is high in fluorescence intensity, simple and convenient to synthesize and high in specificity of reaction of amino compounds; when the generated fluorescent probe is used for detecting the beta receptor stimulant, the fluorescent probe is rapid in derivation speed and high in fluorescence intensity; the detection sensitivity on the drugs is improved; the detection cost is reduced.